Leaf-turner



(No Modell) WITNESSES:

ATTORNEYS.

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3 Sheets-Sheet 2.

(No Model.)

` J. E. PELLOW.

LEAF TURNER.

No. 439,550. Patented 0013.28, 1890.

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(No Model.) 3 Sheets-Sheet 3. J. E. PELLOW. LEAF TURNER.

No. 439,550. Patented Oct. 28, 1890.

` /NVENTO/.' M BY ATTORNEYS.

W/ TNE SSE S @wf/Zw@ UNITED STATES PATENT OFFICE.

JAMES E. PELLOV, OF SIERRA CITY, CALIFORNIA.

LEAF-TU RN ER.

SPECIFICATION forming part of Letters Patent No. 439,550, dated October 28, 1890.

Application tiled November 5 1889. Serial No. 329300. (No model.)

To all whom t may concern:

Be it known that I` JAMES E. PELLOW, of Sierra City, in the county ofSierra and State of California, have invented a new and Improved Music-Lear` Turner, of which the following is a full, clear, and exact description.

The object ot the invention is to provide a new and improved music-leaf turner, which is simple and duralole in construction and very effective in operation,serving to quickly turn the leaves successively from right to left or from left to right in case a repetition of the music is required.

The invention consists ot certain parts and details and combinations of the same, as will be hereinafter fully described, and then point- Y ed outin the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a front view of the improvement, the cover 'of the shaft-boX being removed. Fig. 2 is an enlarged transverse section of the same on the liuemcof Figs. l and 3. Fig. 3 is a sectional plan view of the same on the line y y of Figs. l and 2. Fig. 4 is an enlarged transverse section of part ot' the improvement-on the line ,e e' of Fig. l. Fig. 5 is an enlarged tace view of the box-cover. Fig. is a front view ct' a inodied form of the improvement. Fig. 7 is an inverted plan view of the same, and Fig. 8 is an end view of the sanie.

The music-leaf turner A consists, principally, of a series ot' shafts, each provided with an arm adapted to hold the leaf to he turned, a spring-actuated mechanism connected with each arm for turning the latter after a lontton is pressed, and a locking device releases the said mechanism, as shown in Figs. l to 5, inclusive. rlhe improved music-leaf turner A is provided with a back B, to the lower end ot which is pivoted an extensionplate C, against which press springs I) to force the eX- tension-plate in line with the back B. The extension-plate C may be locked at any desired angle in relation to the back plate B by means ot a locking device E. The latter is provided with a slotted arm E', pivoted to a lug E2, secured ou the back plate B, as is plainly shown in Figs. l and 4. Through the slot of the arm E extends a notched segment El; secured on the extension-plate C, and adapted to engage hy one of its notches the lower end of the slot in the arm E. Aspring ES, secured on the back plate B, presses against the top ot the arm E', so that the latter is held in firm contact with the respective notch of the segment E4. By moving the plate C upward the arm E engages one ot' the notches in the segmental plate E4, so that the said plate C is held at an angle to the back plate B. The latter usually rests in an inclined position against the piano, and as the extension-plate C can be adjusted to any desired angle it rests horizontallyon the offset ot the music-holder on the piano.

In the middle of the back B is held a box F, provided with a cover -F, secured to the looX in any suitable manner. Inside ot" the box F are mounted, to turn in suitable bearings, the upwardly-extending shafts G, each of which passes through the upper end of the box and carries on its outer end a hollow arm G, in which is held to slide a rod G2, adapted to be secured in any desired place in the arm G by a set-screw G3. On the outer end of each rod G2 is held a hollow arm G4, extending at right angles to the rod G2, and in which is held to slide upward a rod G5, adapted to be secured in place in the said hollow arm G4 by a set-A screw G. Each of the rods G5 carries one, two, or more spring-clasps G7, of any improved construction, and adapted to clasp the outer end of the leaf H to he turned.

The leaves II are held on the covers II of the book oi' music, and the said covers rest against the upper part of the hack plate B and are held on the same hy plates I, each pivotally connected with the upper end of alever I, fulcrumed to a post I2, secured to the back plate B. The lower end of the lever I has a finger-piece I3, against the under side of which presses a spring Ii, so as to hold the plate I iirmly in contact with the respective cover H. lVhen the performer presses on the finger-piece I, the plate I is lifted olii of the cover H', and the book can be conveniently removed from the back plate. Both plates I are arranged near the outer ends of the back plate B, as shown in Fig. l.

The lower edges of the covers II are adapted to rest on offsets J2, secured to arms J and J,eX

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tending in opposite directions from each other, being pivoted at J 3 to the back plate B. The inner ends of the arms J and J are provided with segmental gear-wheels J 4 and J5, respectively, said gear-wheels being in mesh with each other. A spring J 6 connects the arms .I

and J with each other, serving to hold the arms J and J downward, said arms resting at their outer ends against the posts I2 previously mentioned. Arms J and J when raised in a4 vertical position serve to hold sheet-1n usi c that isnot bound in book form. In raising the arms J and J the spring J 6, after passingthe center of the segmental-gear-wheels, 'draws the offsets of the arms J and J closely. to-

F, is secured aV roller K, havin g in its periphery 'aspiral groove-K engaged by' afpin'L, pro- 'jecting from'aro'd L, vmounted tosli'de in suitable bearings parallel to the shaft G. On each rod L is secured a knob L2, which projects through the slot Fformed inthe cover'vF of the box F,`so that the voperator can conveniently move the rod L up or down `by taking hold of' the knob L2. On eachrod Lissecured a transversely-extending arm f N, the rear end of which is engaged by one end of a coil-spring O,'s'ecured in the bo'xF. When` the arm L is moved downward, the spring O is put under tension, and has the tendency to draw the rod`L upward. The upper end of the rod is slightly'beveled at L3, (see'Fig. 2,) and thisupper end is adapted' to be engaged by the bent end P of a lever P, fulcrumed on a post P2, erected in the box F. The lower end of each lever P is provided with -a fingerpiece or knob P3, extending through an aperture F3, formed in the c'overF of the box F. Against the lower end of each lever P presses a spring Q, secured in the box F and serving to hold the bent end P of the lever' P in contact with the rod L. When the latter is in al lowermost position, as shown in Fig. 2, the' bent end P of the spring-pressed leverP engages the upper end of the rod L, thus locking the latter in place against the compressed spring O. 1

On the extension-plate C is secured a hollow' oifset C', on which is held to slide longitudi-V nally a rod R, provided with a number of spring-clamps S, of any suitable construct-ion.y

The .operation is as follows: When the performer desires to usev the music-leaf turner, he places the back B, with its extension-plate' C on the music-rack of the piano, as pre-s viously described. He then placesthebook containing the music on the back plate B, so

that the lower edges of the book-covery rest on the offsets of the armsJ andy, the performer having Vpreviously pressed on the fingerpieces I3 to lift the plates I upward topermit the entrance of the covers on the back plate B. The moment the operator releases the finger-piecel3 the springsIil firmly press the plates I in contact with the covers H, thus holding the book firmly in place on the music- The several leaves H, held in the covers H', are each fastened at one end to a spring-clamp G7 on one of the rods G5. The several Aleaves being thus fastened to the several rods G5, the operator then turns the leaves I by means of the arms G', carrying the rods G5 and the clamps G7 to the right, .intov the position shown in'Fig. 1. By this movement. of the arms G each shaft'G is turned, thereby turning its roller K,which by itsfspiral groove K moves the respectiverodrL into Aa lowermost position, as the :pin 'L' of the. said ro'd travels inthe spiral` groove. This'downward movement of each rod L compresses the respective spring 0,'an'd when` therodL- has reached its lowermostposition the upper end P of the lever-P engagestheupper end of the respective rod L,.and Ylocks.theirlatter in place. As the rod L is "locked'implace the roller K and the respective shaftG'are similarly locked by the locking.y of therrodfL, and consequently the arms G' Yare-locked in place to the right, holding''the'leaves Hontherig-ht cover of the book. The arrnsGv of the several shafts G are .arranged fone-above the other, as shown in`-'Fig."l,ls`o as' not'itoeinterfere with each other inoperating the-musicleaf turner. When the performerhas played one side of the first leaf Hwan'didesires to'turn the latter, he presses on the knobfP3 ofthe respective"shaft G, carrying thefarm G,con

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nected by its rod G5v and the' clamps G7with the first leaf. The 'moment the",peformer presses the leverP, theibent endPf'is disengaged from the upper end of'tlierodL, and the latter by the action of the spring O is turned upward, whereby the. pin L on the said rod L, traveling in the groove K', turns the roller K. The turning ofthe latter-causes the turning of the shaft G, so that the rod G swings from the right to the left, and the'leaf H is consequently carried to the left-hand cover of the book-that is, theleaf has been turned. When the performerhas' reached-the bottom of the irst side of the next following page, he presses on theknob Plbelonging to second device, so that the secondroller K is turned and with it the shaft G,'f-whereby the successively and presses the same downward,

iso that the rods L are Inoveddownward,and, `by theirpins L"turn the.v respectivefrollers IK, which'in'turn, by being secured'on the shafts' G, swing the arms G from the left back IIO vof the spring V.

to the right in the position shown in Fig. i. Vhen the rods L are moved downward into their lowermost position, the bent ends P of the leversP can pass over the ends ofthe rods L to lock the samein place, as previously described. The above-described operation is then repeated.

In the modification shown in Figs. 6 t0 S the shaft G is mounted on a plate U, held on the frame l3,and instead of carrying a grooved roller K is provided with a gear-wheel T, meshing into a gear-wheel T, provided with a handle T2, standing in its normal posit-ion upright and serving for turning the said gear-wheel T from right to left and imparting rotary motion to the gear-wheel T from left to right, and consequently to the shaft G, in order to set the device. The gear-wheel T also meshes into a rack TS opposite the gear-wheel T, the said rack being mounted to slide in suitable bearings on the plate U. A spring T4 is coiled in the said rack and presses onto the same from left to right. One outer end of the rack T3 projects beyond one of thebearings, and is adapted, when the device is set, to butt-against an arm V, secured on a spring V, held on the rear side of the plate U, the said arm passing through a slot in the said plate U to the front. A knob or button V2 is secured on the outer end of the arm V and serves to press the latter rearward against the tension An aperture V3 of about the size of the end of the rack T3 is formed in the arm V above the contacting point of the rack T3 with the arm V, so that when the latter is pressed rearward the aperture V3 comes in line with the end of the rack T3, and the latter is permitted to slide from the left to the right, this movement being effected by the compressed spring T4.

The operation is as follows: \Vhen the performer desires to use the music-leaf turner, he fastens the music-leaf to the clamp GT in the manner previously described and then takes hold of the handle T2, which stands then in upright position, and swings it to the left, whereby the shaft G is turned from left to right and the leaf carried to the right side of the book or stand. The movement of the handle 2 causes the gear-wheel T to move the rack T3 from right to left until the projecting end of the rack is disengaged from the aperture V3 in the arm V and the latter moves outwardly by the force of the spring V', so that when the operator releases the handle T2 the end of the rack butts against the arm V below the aperture V3. The rack, as well as the other parts, are now locked in place. IVhen the operator now desires to turn the leaf over while playing, he presses slightly on the button Vgof the arm V, whereby the latter is moved rearward andthe aperture V3 registers with the end of the rack T3, whereby the compressed spring T4 forces the rack to the right, the end of the rack passing through the aperture V3. This movement of the rack turns the gear-wheels T and T and consequently the shaft G, from right to left, whereby the arm G moves the leaf in the same direction-that is, turns the leaf.

It is understood that any desired number of devices above described may be placed on the plate U, one above the other, the number corresponding to the number of leaves to be turned-that is, each leaf has its separate device and is operated on independently of the other and in the manner above described.

It is understood that when several devices are used they are set and operated on one after the other'in regular order.

I do not limit myself to the exact construction shown, as it is obvious that the details may be varied within reasonable limits with- Out departing from the spirit of my invention.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patentv l. In a music-leaf turner, the combination, with one or more shafts, each carrying an arm adapted to hold the free end of the leaf to be turned, of a spring-actuated roller for turning the said shaft, a locking device for locking the said shaft and mechanism in place, and means, substantially as described, for setting the said mechanism, substantially as shown and described.

2. In a music-leaf turner, the combination, With a shaft mounted to turn, and a leaf-turning arm secured at right angles to the said shaft, of a roller secured on the said shaft and provided with a spiral groove, and a rodl mounted to slide and carrying a pin engaging the said spiral groove, substantially as shown 'and described.

3. In a music-leaf turner, the combination, with a shaft mounted to turn', and a leaf-turna ing arm secured at right angles to the said shaft, of a roller secured on the said shaft and provided with a spiral groove, a rod mounted to slide and carrying a pin engaging the said spiral groove, and a spring acting on the said rod, substantially as shown and described.

4. In a music-leaf turner, the combination, With a shaft mounted to turn, and a leaf-turning arm secured at right angles to the said shaft, of a roller secured on the said shaft and provided With a spiral groove, a rod mounted to slide and carrying a pin engaging the said spiral groove, a spring acting on the said rod, and a spring-pressed locking-lever serving to lock the said rod in place when the said spring is compressed, substantially as shown and described.

5. In a music-leaf turner, the combination, with a spring-actuated revolving roller, of a shaft secured to said roller and connected with the leaf, and a locking device for holding the roller in place, substantially as shown and described.

6. In a music-leaf turner, the combination, .with a spring-actuated revolving roller, of a shaft secured to said roller and connected IOO IIO

With the leaf, and a spring-actuated locking device for holding the roller in place, substantially as shown and described.

7. In a music-leaf turner, the combination, With a back plate, of an extension-plate hinged on the lower end of the said back plate, and a device*` substantially as described, for locking the said extension-plate in place at any desired angle relative to the said back plate, substantally as shown and described.

8. In a music-leaf turner, the combination, with a back plate, of an extensionplate hinged on the lower end of the said back plate, a device, substantially as described, for locking the said extension-plate in place at any desired angle relative to the said back plate, and aspring pressing on the said eX- tension-plate, substantially as shown and described.

9. In a music-leaf turner, the combination, with a back plate, of two arms pivoted to said back plate, said arms being constructed and arranged substantially yas described, so

the said arms With each other, substantially as shown and described.

JAS. PELLOW. X'Vitnesses:

STEPHEN THOMAS, FRANCIS X. LA BONT. 

